Casting table



A ril 1927.

p 19 H. R. scHU'rz emma TABLE Filed sept. 15. 19'26 /VI/ nl I @nonnina Cil Patented Apr. lg, i927.

UNITED STTES PATENT OFFICE.

HAROLD R. SCHUTZ, OF TOLEDO, OHIO, ASSIGNOR TO THE EDWARD FORD .PLATE GLASS COMPANY, OF

ROSSFORD, OHIO, A CORPORATION OF OHIO.

CASTNG TABLE.

y Application filed September 15, 1926. Serial No. 135,528.

This invention relates to casting tablesl of the type commonly used in plants for manufacturing sheet or plate glass and adapted to be propelled along rails and beneath a set of rolls for flattening glass thereon in sheet or plate form. n some cases the table is stationary and the flattening roll or rolls moved thereon.

An object of the invention is the provision in a table of the character described of a base or truck frame and a top or table portion with the latter' mounted on the former in a manner to allow for free contracting and expanding movements responsive to temperature changes without cracking, warping or disiiguring the top and also to permit an easy and rapid replacement of the top portion as occasion may require.

A further object of the 'invention is the provision of a sectional top portion in a table of the character described, whereby any section, should it become damaged, may be easily and quickly replaced. Further bjects and advantages of the invention will be apparent from the following detailed description.

lVhile the invention in its broader aspect is capable of embodiment in numerous forms, one embodiment thereof is illustrated in the accompanying drawing, in which,-

Figure l is a plan view of a casting table embodying the invention with parts of the top portion or table proper broken away. Fig. 2 is a side elevation thereof with a portion broken away. Fig. 3 is a cross-section on the line 3 3 in Fig. 2, and Figs. i and 5 are enlarged fragmentary sections on the lines ft-t and 5-5, respectively, in Fig. 1.

The casting table embodying the invention comprises a base or truck frame portion 1 and a removable top portion 2, which latter forms the casting surface of the table. The truck frame l is carried by a plurality of wheels 3 to adapt it to travel on a guiding track and is preferably of skeleton form to facilitate cooling, and in its present embodimentis composed of four rectangular sections secured in respective end and side abutting relation by bolts t.

The top 9. is intended to cover the truck frame top, being substantially coextensive in length and width therewith, and is sepalrably attached to the frame by a center dowel pin 5 and dowel pin 7 disposed between the center pin and the ends of the table. The dowel pin 5 fits snugly in all directions in a central socket 6 in the underside of the table top, so as to hold the engaged portion of the table' against relative lateral movements in any direction, and each end pin 7 projects into a registering socket 8 in the underside of the table top. The sockets S are elongated lengthwise of the table, so that the pins 7 lit snugly therein crosswise of the table and have clearance lengthwise thereof to allow for expansion and contraction of the vrespective end portions of the table due to temperature changes and other causes. lt is thus apparent that the table rop is held firmly to the underframe at its central point due to the fitting in all directions of the pin 5 in the table socket (i and that the port-ions of the top at both ends of the center dowel pin are free to expand and contract in all directions from the center without distorting the underframe in any way due to the clearance provided between the end dowel pins 7 and their sockets 8 lengthwise of the tableand the snugly fitting of the same crosswise of the table. This construction also facilitates the replacement of the table top, should the same become damaged or unduly worn, as it can be quickly lifted from the frame and a new one substituted therefor.

It is preferable in practice, although not necessary', to make up the table top '2 in a plurality of sections l0 which are held together by bolts or tie rods ll extending through all of the sections lengthwise of the table. The sections l0 in the present instance are co-extensive in length with the width of the table and have their side edges machined and forming close abutting joints and also provided with keys l2 fitting in registering recesses in the abutting sides of the adjoining sections. These keys preserve the vertical alignment between the various sections and keep the upper surface of the top portion true.

The sections of the top portion 2 are preferably formed with a thin top wall and with supporting flanges or webs 13 extending downward marginally and crosswise thereof and adapted to rest on the truck frame.

t is apparent that should any section or portion of the table top become broken or disiigured in use or while handling, the sec tion or sections including the same may be quickly removed and new ones substituted 11111103101', 11101011.11v 011111111111111` 1110 110110ss11y 01 1011111011111' 11111 01111111 1111110 1013 111 11111 0110111: 111" 111111111110 01,' 1111111111111 01111,'11 1101111011 11111111111.

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